Cranked relativistic Hartree-Bogoliubov theory:: Superdeformed bands in the A∼190 region -: art. no. 051303

被引：53

作者：

Afanasjev, AV ^{[1
]}

König, J

Ring, P

机构：

[1] Tech Univ Munich, Dept Phys, D-85747 Garching, Germany

[2] Latvian Acad Sci, Nucl Res Ctr, LV-2169 Salaspils, Latvia

来源：

PHYSICAL REVIEW C | 1999年 / 60卷 / 05期

关键词：

D O I：

10.1103/PhysRevC.60.051303

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Cranked relativistic Hartree-Bogoliubov (CRHB) theory is presented as an extension of relativistic mean field theory with pairing correlations in the rotating frame. Pairing correlations are taken into account by a finite range two-body force of Gogny type, and approximate particle number projection is performed by the Lipkin-Nogami method. This theory is applied to the description of yrast superdeformed rotational bands observed in even-even nuclei of the A similar to 190 mass region. Using the well-established parameter sets NL1 for the Lagrangian and DIS for the pairing force one obtains a very successful description of data such as kinematic (J((1))) and dynamic (J((2))) moments of inertia without any adjustment of new parameters. Within the present experimental accuracy the calculated transition quadrupole moments Q(t) agree reasonably well with the observed data. [S0556-2813(99)50311-7].

引用

页数：5

共 40 条

[1] Relativistic mean field theory in rotating frame: Single-particle properties at superdeformation [J].

Afanasjev, AV ;

Lalazissis, GA ;

Ring, P .

NUCLEAR PHYSICS A, 1998, 634 (04) :395-440

[2]

Afanasjev AV, 1997, ACTA PHYS HUNG NS-H, V6, P299

[3] Superdeformed rotational bands in the A similar to 140-150 mass region: A cranked relativistic mean field description [J].

Afanasjev, AV ;

Konig, J ;

Ring, P .

NUCLEAR PHYSICS A, 1996, 608 (02) :107-175

[4] Comparative study of superdeformed and highly deformed bands in the A ∼ 60 mass region [J].

Afanasjev, AV ;

Ragnarsson, I ;

Ring, P .

PHYSICAL REVIEW C, 1999, 59 (06) :3166-3171

[5] Lifetime measurements and dipole transition rates for superdeformed states in Hg-190 [J].

Amro, H ;

Moore, EF ;

Janssens, RVF ;

Hackman, G ;

Fischer, SM ;

Carpenter, MP ;

Ahmad, I ;

Crowell, B ;

Khoo, TL ;

Lauritsen, T ;

Nisius, D ;

Timar, J ;

Wilson, J .

PHYSICS LETTERS B, 1997, 413 (1-2) :15-21

[6] TIME-DEPENDENT QUANTUM COLLECTIVE DYNAMICS APPLIED TO NUCLEAR-FISSION [J].

BERGER, JF ;

GIROD, M ;

GOGNY, D .

COMPUTER PHYSICS COMMUNICATIONS, 1991, 63 (1-3) :365-374

[7] Lifetime measurements of yrast and excited superdeformed bands in 192,193Hg [J].

Busse, BC ;

Fallon, P ;

Krucken, R ;

Ackermann, D ;

Ahmad, I ;

Asztalos, SJ ;

Blumenthal, DJ ;

Carpenter, MP ;

Clark, RM ;

Deleplanque, MA ;

Diamond, RM ;

Fischer, SM ;

Hannachi, F ;

Janssens, RVF ;

Khoo, TL ;

Korichi, A ;

Lauritsen, T ;

Lee, IY ;

Lopez-Martens, A ;

Macchiavelli, AO ;

MacLeod, RW ;

Moore, EF ;

Nisius, D ;

Schmid, G ;

Seweryniak, D ;

Stephens, FS ;

Vetter, K .

PHYSICAL REVIEW C, 1998, 57 (03) :R1017-R1021

[8] NEW FEATURES OF SUPERDEFORMED BANDS IN HG-194 [J].

CEDERWALL, B ;

JANSSENS, RVF ;

BRINKMAN, MJ ;

LEE, IY ;

AHMAD, I ;

BECKER, JA ;

CARPENTER, MP ;

CROWELL, B ;

DELEPLANQUE, MA ;

DIAMOND, RM ;

DRAPER, JE ;

DUYAR, C ;

FALLON, P ;

FARRIS, LP ;

HENRY, EA ;

HENRY, RG ;

HUGHES, JR ;

KHOO, TL ;

LAURITSEN, T ;

MACCHIAVELLI, AO ;

RUBEL, E ;

STEPHENS, FS ;

STOYER, MA ;

SATULA, W ;

WIEDENHOEVER, I ;

WYSS, R .

PHYSICAL REVIEW LETTERS, 1994, 72 (20) :3150-3153

[9] Superdeformation in 68Zn:: Evidence for a new, neutron-rich island of superdeformation in A ∼ 70 nuclei [J].

Devlin, M ;

Afanasjev, AV ;

Clark, RM ;

LaFosse, DR ;

Lee, IY ;

Lerma, F ;

Macchiavelli, AO ;

MacLeod, RW ;

Ragnarsson, I ;

Ring, P ;

Rudolph, D ;

Sarantites, DG ;

Thirolf, PG .

PHYSICAL REVIEW LETTERS, 1999, 82 (26) :5217-5220

[10] QUASI-PARTICLE EXCITATIONS IN SUPERDEFORMED HG-192 [J].

FALLON, P ;

LAURITSEN, T ;

AHMAD, I ;

CARPENTER, MP ;

CEDERWALL, B ;

CLARK, RM ;

CROWELL, B ;

DELEPLANQUE, MA ;

DIAMOND, RM ;

GALL, B ;

HANNACHI, F ;

HENRY, RG ;

JANSSENS, RVF ;

KHOO, TL ;

KORICHI, A ;

LEE, IY ;

MACCHIAVELLI, AO ;

SCHUCK, C ;

STEPHENS, FS .

PHYSICAL REVIEW C, 1995, 51 (04) :R1609-R1612

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